The Magpul PRS (Precision Rifle/Sniper) SR25/M110 model is a drop-in, precision-adjustable butt stock especially designed for the longer charging handle throw of 7.62 NATO platforms. Designed to offer the fine-tuned, customized feel of a precision target stock, the PRS is adjustable for both comb height and length-of-pull without sacrificing the durability necessary to withstand the operational environment. Compared to the A2 stock, the PRS can shorten LOP by 0.25" or extend it by 0.75", as well as provide 0.75" of comb height adjustment. Machined aluminum adjustment knobs feature positive-locking click detents to maintain position under recoil and allows easy, tool-less adjustments by simply rotating the knbos.